Suppose f(x,y,z)=Boole[0<x<y<z<1]. Let's integrate this function
over, say, z, i.e. Integrate[f[x,y,z],{z,0,1}]. One would expect to see
the
output like this (1-y)Boole[0<x<y<1] (or maybe simplified expression
as an argument in the Boole function). Instead, an error appears
(warning) that the integration cannot be performed.
How to resolve this issue so it produces a desired answer?
Janusz.